func (db *serviceClient) Cells(logger lager.Logger) (models.CellSet, error) {
kvPairs, _, err := db.consulClient.KV().List(CellSchemaRoot(), nil)
if err != nil {
bbsErr := models.ConvertError(convertConsulError(err))
if bbsErr.Type != models.Error_ResourceNotFound {
return nil, bbsErr
}
}
if kvPairs == nil {
err = consuladapter.NewPrefixNotFoundError(CellSchemaRoot())
bbsErr := models.ConvertError(convertConsulError(err))
if bbsErr.Type != models.Error_ResourceNotFound {
return nil, bbsErr
}
}
cellPresences := models.NewCellSet()
for _, kvPair := range kvPairs {
if kvPair.Session == "" {
continue
}
cell := kvPair.Value
presence := new(models.CellPresence)
err := models.FromJSON(cell, presence)
if err != nil {
logger.Error("failed-to-unmarshal-cells-json", err)
continue
}
cellPresences.Add(presence)
}
return cellPresences, nil
}
})
It("eventually returns no data", func() {
otherAdapter := clusterRunner.NewSession("otherSession")
Eventually(func() map[string][]byte {
pairs, err := otherAdapter.ListAcquiredValues("under")
Expect(err).NotTo(HaveOccurred())
return pairs
}).Should(Equal(map[string][]byte{}))
})
})
Context("when no keys are present", func() {
It("returns an empty set", func() {
_, err := session.ListAcquiredValues("not-present")
Expect(err).To(Equal(consuladapter.NewPrefixNotFoundError("not-present")))
})
Context("when the prefix is present", func() {
BeforeEach(func() {
_, err := client.KV().Put(&api.KVPair{Key: unowned, Value: []byte{}}, nil)
Expect(err).NotTo(HaveOccurred())
})
It("returns an empty result", func() {
pairs, err := session.ListAcquiredValues(unowned)
Expect(err).NotTo(HaveOccurred())
Expect(pairs).To(Equal(map[string][]byte{}))
})
})
})